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Safoora Rahimi,Rozita M. Moattari,Laleh Rajabi,Ali Ashraf Derakhshan,Mohammad Keyhan 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.23 No.-
Needle-like lepidocrocite nanoparticles with a diameter of 10–30 nm and a length of 100–300 nm and goethite nanospheres with a diameter of 10–60 nm were synthesized and examined as adsorbents for lead removal from solutions. FTIR, SEM and DLS characterized the nanomaterials. The most influential factor in the batch adsorption experiments by nanoparticles for capacity and removal efficiency was adsorbent dose and type of adsorbent, respectively. The optimum condition for lead removal by nanoparticles was found to be: C0 = 5 mg/L, pH = 5.2 and goethite as the more efficient adsorbent. Langmuir and Sips isotherms successfully described the adsorption of lead ions.